Evaporating apparatus



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W.` GOLDNGH BVAPORATING APPARATUS.

No. 289,147. Patented Jan. 3, 1893.

UNITED STATES` PATENT OFFICE.

WILTAM GOLDING, .OF NEWY ORLEANS, LOUISIAN.

EvAPoRATlNe APPARATUS.

SPECIFICATION forming part of Letters Patent No. 489,147, dated January 3, 1893.

y Application iiled March 30, 1892. Serial No. 427,103. (No model.) l

Improved Apparatus for Recovering Solid Matters from Solutions, of which the following 1s a full, clear, and exact description, reference being had to the accompanying drawing,'in which myimproved apparatus is shown in side elevation and partly in section.

l ,The invention consists inthe novel construction, arrangement and combination of parts, as will be hereinafter described and claimed.

Referring nomspeciiicallyto the drawing,

10 represents a boiler, and 11 a drum arf ranged in connection therewith', in which drum there are arranged a number of pipes 12that are seated in heads 2, and communicate with chambers 13, at each end of the drum, the Itubes being so arranged that they place the` two end chambers 13 in communication.` A tube 14, leads from one end of the drum 11 to an inclined box-like structure 15, in which I` arrange a stair1ike structure 16, which constitutes the absorber. The treadsof the absorber are preferably made of sheet metal while the risers 17, are perforated. The lower end of `the inclined box-like structure 15 dips into a receiving vessel ortank 18, and above the upper horizontal section 19 of the structure 15, Ifplace a tank 20.

Above the upper tread 21, of the stair-like structure 16, I arrange a guard or shield 22, which, as represented in the drawing, is a continuation of the lower portion of the'horzontal section 19 of the structure 15, the end of this guard being bent downward se@ as to rest upon theupturned end 23 of the tread 21, this upt'urned portion 23being perforated. A Siphon 2i, leads from the ,tank 2O downward through the shield 22 to` a point just above` the tread"2l.

may be forced through-the tubes 12 that are i arranged, as before stated, within the drum 11, the air so forced through the tubes passing from the drum through the pipe 14 and In operation, the solution to be operated upon is placed within the tank 20, passing thence through the siphon 24 to the upper 55 tread 21 of the `structure 16, and thence in a series of cataracts over the treads of said structure, the heated air currents passing outward from beneath the treads and through the perforated risers, through the cataracts 6o formed by the downward passage of thesolution, which latter is finally discharged from the horizontal section of the structure 15, the` air 'currents being forced to take the course indicated, owing to the seal formed by the 65 liquid in the tank 18.

From the foregoing description it will be seen that the water contained inthesolu'tion that is being `operated "upon, will be absorbed by the heated air that is forced through it, it 7o being well understood that heated air has a high affinity for water; and in practice it will befound that the process of absorbing the water from the solutionis very much cheaper than the old process of evaporation. `As the 7 5,`

heated moistureladen air passes beneath the tank 20, it will act to heat the 'material eontained within said tank, givinggoif a portion of its heat,.and at the same time a portion .of 1

the water carried by the material will be pre` 8o cipitated; and if desired, this water` of condensation may be collected and used for such purposes as may be expedientsuch water be ing absolutely pure. i

Having thus described my invention, I 85 claim as new, and desire to secure by Letters Patent,-

1. The combination, with a. closed, boxflike structure, of a transverse series of steps dividingsaid structure longitudinally and form 9o ing air-"passages at front and rear thereof, the treads of said steps being imperforate and the risers being perforated,'and aninlet discharging on, the top tread of said Steps, substsm tially as shown and described.

In connection with the drum 11, I arr "nfgff 2. The combination, with aclosed,inc1ined afan 25, by means of which a current of` ``airf` box-like structure, of a transverse series of steps dividing said structure,longitudinally ,into front and rear air-passages, a hotfair inh let at the lower end of the rear passage and :op an air outlet at the upper end of the front passage, and a liquid 'seal at the lower end thereof, the risers of the steps being perfo# rated and the treads imperforatdand a supply pipe inlet discharging en the iop tread of said steps,A substantially asl shown' and described.

3. nan apparatus for i'eeof'eringrsolid matters from solutions, the combination, with a supply tank, of a box-iike struoture havinga section which passes beneath the jienk, a series of imperforate treadsrand perforated risers arranged Within said structure, a supply pipe ieadingfrom the supply tank to a point above the upper tread, a receiving tank within which the lower end of the box-like structure dips, drum to the lower Yportion of the box-like strueture, pipes arranged Within the drum and communicating with the pipeieading from the drum, and a blast fen arranged in connection with the. drum, substantially age Shown an described.

WM. GOLDiNG.

Witnesses? I H. H. BRYAN', Taos. R. Rozmz,

a steam drum, n pipe lending from the 

